DE1560219C2 - Method for preventing fibers from being wound up on roller covers and aprons made of synthetic rubber in spinning machine drafting systems - Google Patents

Method for preventing fibers from being wound up on roller covers and aprons made of synthetic rubber in spinning machine drafting systems

Info

Publication number
DE1560219C2
DE1560219C2 DE1560219A DEF0049195A DE1560219C2 DE 1560219 C2 DE1560219 C2 DE 1560219C2 DE 1560219 A DE1560219 A DE 1560219A DE F0049195 A DEF0049195 A DE F0049195A DE 1560219 C2 DE1560219 C2 DE 1560219C2
Authority
DE
Germany
Prior art keywords
spinning machine
synthetic rubber
wound
drafting systems
aprons
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE1560219A
Other languages
German (de)
Other versions
DE1560219B1 (en
Inventor
Hans Robert Dr. 6940 Weinheim Schaschek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carl Freudenberg KG filed Critical Carl Freudenberg KG
Priority to DE1560219A priority Critical patent/DE1560219C2/en
Publication of DE1560219B1 publication Critical patent/DE1560219B1/en
Application granted granted Critical
Publication of DE1560219C2 publication Critical patent/DE1560219C2/en
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H13/00Other common constructional features, details or accessories
    • D01H13/14Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Paper (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Description

In Spinnmaschinen-Streckwerken werden heute Oberwalzenbezüge und Spinnriemchen mit Ausnahme von Unterriemchen fast ausschließlich aus synthetischem Gummi verwendet, da man diese aus synthetischem Material in gleichbleibender Qualität und mit genauen Abmessungen herstellen kann. Obwohl die Entwicklung entsprechenden synthetischen Gummis sehr weit fortgeschritten ist, kommt es vor, daß infolge gewisser, meist klimatisch bedingter Umstände die Bezüge zum »Wickeln« neigen, d. h., es werden einzelne Fasern aus dem Faserverband herausgelöst, die sich auf dem Walzenbezug sammeln und im weiteren Verlauf einen Walzenwickel aus guten Fasern bilden. Auch bei einem Fadenbruch werden häufig die Fasern um den Walzenbezug herumgewickelt.In spinning machine drafting systems, top roll covers and spinning aprons are used today with the exception of Unterriemchen almost exclusively made of synthetic rubber, since these are made of synthetic Can produce material of consistent quality and with precise dimensions. Although the Development of corresponding synthetic rubbers is very advanced, it happens that as a result Certain, mostly climatic conditions, the covers tend to "wrap", d. i.e., there will be individual ones Fibers detached from the fiber structure, which collect on the roller cover and in the further course make a roll of good fibers. Even if the thread breaks, the fibers are often around the Roller cover wrapped around.

Die Wickelbildung hat man bislang auf verschiedene Weise bekämpft. So hat man die Gummioberfläche rauh gemacht; z. B.'durch Einmischen geeigneter Füllstoffe (deutsche Patentschrift 9 63 313). Bei einem anderen Verfahren wird die Oberfläche mit UV-Licht bestrahlt (österreichische Patentschrift 1 96 286).So far, lap formation has been combated in a number of ways. So you have the rubber surface rough made; z. B. 'by mixing in suitable fillers (German patent 9 63 313). With another In the process, the surface is irradiated with UV light (Austrian patent specification 1 96 286).

Vielfach wird die Gummioberfläche mit LackThe rubber surface is often coated with varnish

in bestrichen, was aber zeitraubend und wegen der kurzen Lebensdauer des Lackfilmes auch kostspielig ist (deutsche Patentschrift 17 752). Ein Nachbehandeln der Oberfläche mit verschiedenen gelösten Chemikalien hatte bislang nicht den gewünschten Erfolg.in coated, which is time consuming and because of the short Lifespan of the paint film is also expensive (German patent 17 752). Post-treatment of the Surface with various dissolved chemicals has so far not had the desired success.

π Es wurde nun gefunden, daß man das gefürchtete Wickeln auf Walzenbezügen und Riemchen aus synthetischem Gummi bei Spinnmaschinen-Streckwerken vermeiden kann, wenn man auf die Oberfläche derartiger Walzen und Riemchen Isocyanate allein aufbringt. Zu diesem Zweck löst man ein Isocyanat allein z. B/ in einem organischen Lösungsmittel und bestreicht dann die Oberfläche der Walzenbezüge oder der Riemchen mit dieser Lösung. Es ist jedoch auch möglich, das Isocyanat allein dampfförmig auf die Oberfläche der Walzenbezüge oder Riemchen aufzubringen. Besonders geeignet istTri-(isocyanato-phenyl)-thio-Phosphat. π It has now been found that you can do the dreaded winding on roller covers and straps synthetic rubber in spinning machine drafting systems can be avoided if one on the surface such rollers and aprons applies isocyanates alone. An isocyanate is dissolved for this purpose alone z. B / in an organic solvent and then spreads the surface of the roll covers or the brick with this solution. However, it is also possible to use the isocyanate alone in vapor form To apply the surface of the roll covers or aprons. Tri (isocyanato-phenyl) -thio-phosphate is particularly suitable.

Beispielexample

Man fügt zu 30 Volumenteilen einer 20prozentigen Lösung von Tri-(isocyanato-phenyl)-thio-Phosphat (Handelsname Desmodur RF) in Methylenchlorid noch 70 Volumenteile wasserfreies Chlorbenzol. Diese Lösung wird auf die Walzenbezüge aufgepinselt. Nach dem Trocknen ist die Oberfläche derart verändert, daß die gefürchtete Wickelbildung nicht mehr auftritt.One adds to 30 parts by volume of a 20 percent solution of tri- (isocyanato-phenyl) -thio-phosphate (Trade name Desmodur RF) still 70 parts by volume of anhydrous chlorobenzene in methylene chloride. These Solution is brushed onto the roller covers. After drying, the surface is changed in such a way that the dreaded lap formation no longer occurs.

Claims (4)

Patentansprüche:Patent claims: 1. Verfahren zum Verhindern des Aufwickeins von Fasern auf Walzenbezügen und Riemchen aus synthetischem Gummi bei Spinnmaschinen-Streckwerken, dadurch gekennzeichnet, daß man die Oberfläche der Walzen und Riemchen der Einwirkung von Isocyanaten allein aussetzt.1. Method of preventing fibers from winding up on roll covers and aprons synthetic rubber in spinning machine drafting systems, characterized in that the surface of the rollers and aprons is exposed to isocyanates alone. 2. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, daß Isocyanate in gelöster Form aufgestrichen werden.2. The method according to claim 1, characterized in that isocyanates painted on in dissolved form will. 3. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, daß Isocyanate dampfförmig aufgebracht werden.3. The method according to claim 1, characterized in that isocyanates applied in vapor form will. 4. Verfahren gemäß Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß Tri-isocyanate, vorzugsweise Tri-(isocyanato-phenyl)-thio-Phosphat, verwendet werden.4. Process according to Claims 1 to 3, characterized in that tri-isocyanates, preferably Tri- (isocyanato-phenyl) -thio-phosphate, can be used.
DE1560219A 1966-05-13 1966-05-13 Method for preventing fibers from being wound up on roller covers and aprons made of synthetic rubber in spinning machine drafting systems Expired DE1560219C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1560219A DE1560219C2 (en) 1966-05-13 1966-05-13 Method for preventing fibers from being wound up on roller covers and aprons made of synthetic rubber in spinning machine drafting systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1560219A DE1560219C2 (en) 1966-05-13 1966-05-13 Method for preventing fibers from being wound up on roller covers and aprons made of synthetic rubber in spinning machine drafting systems

Publications (2)

Publication Number Publication Date
DE1560219B1 DE1560219B1 (en) 1972-06-29
DE1560219C2 true DE1560219C2 (en) 1979-08-23

Family

ID=7102811

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1560219A Expired DE1560219C2 (en) 1966-05-13 1966-05-13 Method for preventing fibers from being wound up on roller covers and aprons made of synthetic rubber in spinning machine drafting systems

Country Status (1)

Country Link
DE (1) DE1560219C2 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE17752C (en) * 1900-01-01 J. B. WILLIAM in Sultz i. Elsafs Coating on the rollers of the drafting devices of spinning machines
DE910221C (en) * 1940-05-04 1954-04-29 Bayer Ag Process for the production of shaped masses
DE888971C (en) * 1943-08-18 1953-09-07 Bayer Ag Pressure cylinder for the spinning of fully synthetic fibers
DE900186C (en) * 1950-10-20 1953-12-21 Globus Gummi & Asbestwerk Gmbh Material for elastic and plastic parts of textile machines, especially for the pressure roller covers and aprons of the drafting systems of spinning machines
DE872398C (en) * 1951-12-02 1953-03-30 Bayer Ag Process for the production of everyday objects made of various elastic products in a layer structure
DE905829C (en) * 1952-05-20 1954-03-08 Continental Gummi Werke Ag Process for the production of spinning slips, knitted pants or the like.
US2837775A (en) * 1952-07-19 1958-06-10 Dayton Rubber Company Textile cot
AT196286B (en) * 1956-01-18 1958-03-10 Semperit Ag Process for the treatment of pressure roller covers for spinning machines
FR1414577A (en) * 1964-11-24 1965-10-15 Gummi Und Asbestwerke Gesellch One or more layers spinning unit for a spinning machine

Also Published As

Publication number Publication date
DE1560219B1 (en) 1972-06-29

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Legal Events

Date Code Title Description
C2 Grant after previous publication (2nd publication)